1 /*        $NetBSD: quota_schema.c,v 1.7 2012/02/01 05:46:46 dholland Exp $      */
2 /*-
3  * Copyright (c) 2011 The NetBSD Foundation, Inc.
4  * All rights reserved.
5  *
6  * This code is derived from software contributed to The NetBSD Foundation
7  * by David A. Holland.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28  * POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: quota_schema.c,v 1.7 2012/02/01 05:46:46 dholland Exp $");
33 
34 #include <sys/types.h>
35 #include <sys/statvfs.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <errno.h>
39 
40 #include <quota.h>
41 #include "quotapvt.h"
42 
43 /*
44  * Functions for getting information about idtypes and such.
45  */
46 
47 const char *
quota_getimplname(struct quotahandle * qh)48 quota_getimplname(struct quotahandle *qh)
49 {
50           switch (qh->qh_mode) {
51               case QUOTA_MODE_NFS:
52                     /* XXX this should maybe report the rquotad protocol version */
53                     return "nfs via rquotad";
54 
55               case QUOTA_MODE_OLDFILES:
56                     return __quota_oldfiles_getimplname(qh);
57 
58               case QUOTA_MODE_KERNEL:
59                     return __quota_kernel_getimplname(qh);
60 
61               default:
62                     break;
63           }
64           errno = EINVAL;
65           return NULL;
66 }
67 
68 unsigned
quota_getrestrictions(struct quotahandle * qh)69 quota_getrestrictions(struct quotahandle *qh)
70 {
71           switch (qh->qh_mode) {
72               case QUOTA_MODE_NFS:
73                     /* XXX this should maybe report the rquotad protocol version */
74                     return QUOTA_RESTRICT_32BIT | QUOTA_RESTRICT_READONLY;
75 
76               case QUOTA_MODE_OLDFILES:
77                     return QUOTA_RESTRICT_NEEDSQUOTACHECK |
78                               QUOTA_RESTRICT_UNIFORMGRACE |
79                               QUOTA_RESTRICT_32BIT;
80 
81               case QUOTA_MODE_KERNEL:
82                     return __quota_kernel_getrestrictions(qh);
83 
84               default:
85                     break;
86           }
87           errno = EINVAL;
88           return 0;
89 }
90 
91 int
quota_getnumidtypes(struct quotahandle * qh)92 quota_getnumidtypes(struct quotahandle *qh)
93 {
94           switch (qh->qh_mode) {
95               case QUOTA_MODE_NFS:
96                     /* XXX for old rquotad versions this should be 1... */
97                     return 2;
98 
99               case QUOTA_MODE_KERNEL:
100                     return __quota_kernel_getnumidtypes(qh);
101 
102               case QUOTA_MODE_OLDFILES:
103               default:
104                     break;
105           }
106           return 2;
107 }
108 
109 const char *
quota_idtype_getname(struct quotahandle * qh,int idtype)110 quota_idtype_getname(struct quotahandle *qh, int idtype)
111 {
112           switch (qh->qh_mode) {
113               case QUOTA_MODE_KERNEL:
114                     return __quota_kernel_idtype_getname(qh, idtype);
115 
116               case QUOTA_MODE_NFS:
117               case QUOTA_MODE_OLDFILES:
118                     break;
119           }
120 
121           switch (idtype) {
122               case QUOTA_IDTYPE_USER:
123                     return "user";
124 
125               case QUOTA_IDTYPE_GROUP:
126                     return "group";
127 
128               default:
129                     break;
130           }
131           errno = EINVAL;
132           return "???";
133 }
134 
135 int
quota_getnumobjtypes(struct quotahandle * qh)136 quota_getnumobjtypes(struct quotahandle *qh)
137 {
138           switch (qh->qh_mode) {
139               case QUOTA_MODE_KERNEL:
140                     return __quota_kernel_getnumobjtypes(qh);
141 
142               case QUOTA_MODE_NFS:
143               case QUOTA_MODE_OLDFILES:
144               default:
145                     break;
146           }
147           return 2;
148 }
149 
150 const char *
quota_objtype_getname(struct quotahandle * qh,int objtype)151 quota_objtype_getname(struct quotahandle *qh, int objtype)
152 {
153           switch (qh->qh_mode) {
154               case QUOTA_MODE_KERNEL:
155                     return __quota_kernel_objtype_getname(qh, objtype);
156               case QUOTA_MODE_NFS:
157               case QUOTA_MODE_OLDFILES:
158               default:
159                     break;
160           }
161 
162           switch (objtype) {
163               case QUOTA_OBJTYPE_BLOCKS:
164                     return "block";
165               case QUOTA_OBJTYPE_FILES:
166                     return "file";
167               default:
168                     break;
169           }
170           errno = EINVAL;
171           return "???"; /* ? */
172 }
173 
174 int
quota_objtype_isbytes(struct quotahandle * qh,int objtype)175 quota_objtype_isbytes(struct quotahandle *qh, int objtype)
176 {
177           switch (qh->qh_mode) {
178               case QUOTA_MODE_KERNEL:
179                     return __quota_kernel_objtype_isbytes(qh, objtype);
180               case QUOTA_MODE_NFS:
181               case QUOTA_MODE_OLDFILES:
182               default:
183                     break;
184           }
185 
186           switch (objtype) {
187               case QUOTA_OBJTYPE_BLOCKS:
188                     return 1;
189               case QUOTA_OBJTYPE_FILES:
190                     return 0;
191               default:
192                     break;
193           }
194           errno = EINVAL;
195           return 0; /* ? */
196 }
197